Sealey Pocket Tyre Tread Depth Gauge

The Sealey Pocket Tyre Tread Depth Gauge (TST/DGT) is a compact, easy-to-use measuring tool designed to help motorists, mechanics, and fleet operators quickly assess tyre tread depth and legal compliance. The gauge features a practical colour-coded scale that takes the guesswork out of tyre safety checks. Green indicates a healthy tyre with adequate tread (4.76–25.40mm), yellow signals that replacement should be considered (2.38–3.97mm), and red identifies an illegal tyre depth (0–1.59mm) that requires immediate attention. This clear visual system makes it straightforward t